2016年职称英语卫生类备考之义同形异词：Over / above

“Over”和“above”这两个介词的意思是在……上面。

我们可以说（1）The sky is above our heads.也可以说（2）The sky is over our heads.我们也可以说（3）He Spread his handkerchief over his face.但不能说*（4）He spread his handkerchief above his face. 同样的，可以说（5）John has travelled all over the world以及 （6）The King reigns over a great empire，但是（5）和（6）里的 ”over“却不可以”above“取代。